11778089 has 8 divisors (see below), whose sum is σ = 12224520. Its totient is φ = 11334400.

The previous prime is 11778083. The next prime is 11778097. The reversal of 11778089 is 98087711.

11778089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 218089 + 11560000 = 467^2 + 3400^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11778089 - 2⁸ = 11777833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11778083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12929 + ... + 13809.

It is an arithmetic number, because the mean of its divisors is an integer number (1528065).

Almost surely, 2^11778089 is an apocalyptic number.

It is an amenable number.

11778089 is a deficient number, since it is larger than the sum of its proper divisors (446431).

11778089 is an equidigital number, since it uses as much as digits as its factorization.

11778089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 28224, while the sum is 41.

The square root of 11778089 is about 3431.9220562245. The cubic root of 11778089 is about 227.5228105776.

The spelling of 11778089 in words is "eleven million, seven hundred seventy-eight thousand, eighty-nine".